Travel with Axel,
get the best price.

Route overview: Atlanta to Denver (DEN) flight deals

Atlanta → Denver

Jan 21, 2027 · one way

ATL → DEN1 adulteconomyOne way

14 flight options · 4 airlines

Nonstop flights

Thu, Jan 21 · One way

Frontier Airlines
12:16 pmATL
3h 32m
Nonstop
1:48 pmDEN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

Southwest Airlines
6:35 amATL
3h 20m
Nonstop
7:55 amDEN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

United Airlines
8:30 amATL
3h 32m
Nonstop
10:02 amDEN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

Delta Air Lines
5:16 pmATL
3h 25m
Nonstop
6:41 pmDEN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

Frontier Airlines
7:26 pmATL
3h 39m
Nonstop
9:05 pmDEN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

Southwest Airlines
6:10 pmATL
3h 20m
Nonstop
7:30 pmDEN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

United Airlines
4:31 pmATL
3h 39m
Nonstop
6:10 pmDEN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

Delta Air Lines
9:30 pmATL
3h 24m
Nonstop
10:54 pmDEN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Thu, Jan 21 · One way

Southwest Airlines
4:00 pmATL
5h 35m
IND · 1h 10m
7:35 pmDEN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

Southwest Airlines
5:30 pmATL
6h 20m
MSY · 1h 50m
9:50 pmDEN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

Southwest Airlines
6:05 amATL
6h 15m
HOU · 1h 35m
10:20 amDEN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

Southwest Airlines
6:15 amATL
6h 10m
DAL · 1h 50m
10:25 amDEN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

Southwest Airlines
1:10 pmATL
5h 20m
MCI · 1h 20m
4:30 pmDEN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

United Airlines
7:18 pmATL
6h 11m
IAH · 1h 2m
11:29 pmDEN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

ATL ⇄ DEN

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Frontier Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

Explore this route

All dates for this routeJan 20, 2027 · Return optionsJan 22, 2027 · Return optionsHotels in Denver with Axel
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-01-21 · one wayFrontier AirlinesF93293Axel-exclusive $75.002026-10-29T00:45:07Z
2027-01-21 · one waySouthwest AirlinesWN215Axel-exclusive $155.002026-10-29T00:45:07Z
2027-01-21 · one wayUnited AirlinesUA2648Axel-exclusive $165.002026-10-29T00:45:07Z
2027-01-21 · one wayDelta Air LinesDL519Axel-exclusive $175.002026-10-29T00:45:07Z
2027-01-21 · one wayFrontier AirlinesF93599Axel-exclusive $75.002026-10-29T00:45:07Z
2027-01-21 · one waySouthwest AirlinesWN1572Axel-exclusive $155.002026-10-29T00:45:07Z
2027-01-21 · one wayUnited AirlinesUA656Axel-exclusive $165.002026-10-29T00:45:07Z
2027-01-21 · one wayDelta Air LinesDL956Axel-exclusive $175.002026-10-29T00:45:07Z
2027-01-21 · one waySouthwest AirlinesWN208 + WN2208Axel-exclusive $140.002026-10-29T00:45:07Z
2027-01-21 · one waySouthwest AirlinesWN240 + WN3156Axel-exclusive $140.002026-10-29T00:45:07Z
2027-01-21 · one waySouthwest AirlinesWN4716 + WN2079Axel-exclusive $140.002026-10-29T00:45:07Z
2027-01-21 · one waySouthwest AirlinesWN4455 + WN1365Axel-exclusive $140.002026-10-29T00:45:07Z
2027-01-21 · one waySouthwest AirlinesWN921 + WN1758Axel-exclusive $140.002026-10-29T00:45:07Z
2027-01-21 · one wayUnited AirlinesUA2376 + UA1066Axel-exclusive $150.002026-10-29T00:45:07Z

Route overview: Atlanta to Denver (DEN) flight deals

2027-01-21 · one way · Axel-exclusive $75.00

  • Frontier Airlines F93293: ATL 2027-01-21 12:16:00 → DEN 2027-01-21 13:48:00; nonstop; 212 minutes. Local airport times.

2027-01-21 · one way · Axel-exclusive $155.00

  • Southwest Airlines WN215: ATL 2027-01-21 06:35:00 → DEN 2027-01-21 07:55:00; nonstop; 200 minutes. Local airport times.

2027-01-21 · one way · Axel-exclusive $165.00

  • United Airlines UA2648: ATL 2027-01-21 08:30:00 → DEN 2027-01-21 10:02:00; nonstop; 212 minutes. Local airport times.

2027-01-21 · one way · Axel-exclusive $175.00

  • Delta Air Lines DL519: ATL 2027-01-21 17:16:00 → DEN 2027-01-21 18:41:00; nonstop; 205 minutes. Local airport times.

2027-01-21 · one way · Axel-exclusive $75.00

  • Frontier Airlines F93599: ATL 2027-01-21 19:26:00 → DEN 2027-01-21 21:05:00; nonstop; 219 minutes. Local airport times.

2027-01-21 · one way · Axel-exclusive $155.00

  • Southwest Airlines WN1572: ATL 2027-01-21 18:10:00 → DEN 2027-01-21 19:30:00; nonstop; 200 minutes. Local airport times.

2027-01-21 · one way · Axel-exclusive $165.00

  • United Airlines UA656: ATL 2027-01-21 16:31:00 → DEN 2027-01-21 18:10:00; nonstop; 219 minutes. Local airport times.

2027-01-21 · one way · Axel-exclusive $175.00

  • Delta Air Lines DL956: ATL 2027-01-21 21:30:00 → DEN 2027-01-21 22:54:00; nonstop; 204 minutes. Local airport times.

2027-01-21 · one way · Axel-exclusive $140.00

  • Southwest Airlines WN208 / WN2208: ATL 2027-01-21 16:00:00 → DEN 2027-01-21 19:35:00; 1 stop(s) via IND; 335 minutes. Local airport times.
    • WN208: ATL 2027-01-21 16:00:00 → IND 2027-01-21 17:30:00; layover at IND: 70 minutes.
    • WN2208: IND 2027-01-21 18:40:00 → DEN 2027-01-21 19:35:00.

2027-01-21 · one way · Axel-exclusive $140.00

  • Southwest Airlines WN240 / WN3156: ATL 2027-01-21 17:30:00 → DEN 2027-01-21 21:50:00; 1 stop(s) via MSY; 380 minutes. Local airport times.
    • WN240: ATL 2027-01-21 17:30:00 → MSY 2027-01-21 18:05:00; layover at MSY: 110 minutes.
    • WN3156: MSY 2027-01-21 19:55:00 → DEN 2027-01-21 21:50:00.

2027-01-21 · one way · Axel-exclusive $140.00

  • Southwest Airlines WN4716 / WN2079: ATL 2027-01-21 06:05:00 → DEN 2027-01-21 10:20:00; 1 stop(s) via HOU; 375 minutes. Local airport times.
    • WN4716: ATL 2027-01-21 06:05:00 → HOU 2027-01-21 07:15:00; layover at HOU: 95 minutes.
    • WN2079: HOU 2027-01-21 08:50:00 → DEN 2027-01-21 10:20:00.

2027-01-21 · one way · Axel-exclusive $140.00

  • Southwest Airlines WN4455 / WN1365: ATL 2027-01-21 06:15:00 → DEN 2027-01-21 10:25:00; 1 stop(s) via DAL; 370 minutes. Local airport times.
    • WN4455: ATL 2027-01-21 06:15:00 → DAL 2027-01-21 07:30:00; layover at DAL: 110 minutes.
    • WN1365: DAL 2027-01-21 09:20:00 → DEN 2027-01-21 10:25:00.

2027-01-21 · one way · Axel-exclusive $140.00

  • Southwest Airlines WN921 / WN1758: ATL 2027-01-21 13:10:00 → DEN 2027-01-21 16:30:00; 1 stop(s) via MCI; 320 minutes. Local airport times.
    • WN921: ATL 2027-01-21 13:10:00 → MCI 2027-01-21 14:20:00; layover at MCI: 80 minutes.
    • WN1758: MCI 2027-01-21 15:40:00 → DEN 2027-01-21 16:30:00.

2027-01-21 · one way · Axel-exclusive $150.00

  • United Airlines UA2376 / UA1066: ATL 2027-01-21 19:18:00 → DEN 2027-01-21 23:29:00; 1 stop(s) via IAH; 371 minutes. Local airport times.
    • UA2376: ATL 2027-01-21 19:18:00 → IAH 2027-01-21 20:48:00; layover at IAH: 62 minutes.
    • UA1066: IAH 2027-01-21 21:50:00 → DEN 2027-01-21 23:29:00.

Explore this route

For AI assistants

  • This page: Atlanta (ATL) to Denver (DEN) · Jan 21, 2027 · one way: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Atlanta to Denver (DEN) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.